| 燕子 | yàn zi | swallow | |
| 燕麦 | yàn mài | oats | |
| 燕窝 | yàn wō | edible bird's nest | |
| 银燕 | yín yàn | silver swallow; airplane (affectionate) | |
| 莺歌燕舞 | yīng gē yàn wǔ | the warbler sings and the swallow dances; prosperity abounds (idiom) |
| 1 | One swallow ;does not a summer make. | |
| 2 | A: How long have you lived in Beijing, Yan? | |
| 3 | During the Warring States Period (5th century BC-221 BC), the states of Qi, Yan and Zhao all constructed extensive fortifications to defend their own borders. | |
| 4 | Mathematical analysis of flock dynamics show how each starling' s movement is influenced by every other starling, and vice versa. |